When running fiddler Outlook stops working, how do I fix this?

Question

So at our office we have been having this problem where outlook will disconnect when you have fiddler up. We have tried a few things but nothing has worked. Any ideas?

And don't post a link to the google group that talks about this https://groups.google.com/forum/?fromgroups=#!topic/httpfiddler/j5ojJ0s6KGg That doesn't work. So any other suggestions would be greatly appreciated.

Answer 1

This list works for the most part since I cant use just filter to browsers when developing API's.

Fiddler -> Tools -> Options -> HTTPS -> Skip decryption

These should exclude both Teams / Outlook when on a development machine. Just be wary if you require any of the domains in question.

*.microsoft.com;
*.msn.com;
*.outlook.com;
*.live.com;
*.office.com;
*.office.net;
*.office365.com;
*.skype.com;

Answer 2

I came across this as the first hit when I had this problem. I am using Outlook for Office 365 and skipping decryption for the hosts that Outlook connected to didn't work for me - Outlook was stuck trying to connect. What worked for me was to add the following entries to "Bypass Fiddler for URLs that start with:" under Tools>Options>Connections:

*office.com; *office365.com; *live.com

Answer 3

Tools->Fiddler Options->HTTPS My coworker changed the combo box to ...from browsers only. So far it seems to work, but this might end up not working. So anybody with input would be appreciated.

Answer 4

The best way I have found to solve it is to ue Fiddler (oh the irony) to see which hosts it requires to work (ie keep reconnecting and adding whatever hosts it connects to) until it no longer throws errors at simply keep them in the "Skip decryption" box. For me, on this computer, this works:

snt405-m.hotmail.com
hotmail.com
outlook.office365.com